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What is the difference between tapered and flat-broken microsensor tips?
All the sensors mounted in different housings are available with two different glass-fiber tips, (A) a < 50 µm tapered tip and (B) a 140 µm (PSt1) or 230 μm (PSt7 / PSt8) flat-broken tip.
Advantages of micro-optodes with a tapered tip:
- high signal intensity
- high spatial resolution (< 50 µm)
- very fast response times (up to 1 s)
Disadvantage of micro-optodes with a tapered tip:
- fragile display photobleaching
Advantages of micro-optodes with a flat-broken tip:
- more photostable than tapered ones
- long-term stable
Disadvantages of micro-optodes with flat-broken tip:
- response times in the scale of 40 s
- lower signal intensity